Search a number
-
+
16898020 = 2251137477
BaseRepresentation
bin100000001110…
…1011111100100
31011210111201121
41000131133210
513311214040
61402103324
7263426236
oct100353744
934714647
1016898020
1195a1807
1257aab44
133668539
14235c256
15173bc4a
hex101d7e4

16898020 has 24 divisors (see below), whose sum is σ = 35804664. Its totient is φ = 6698496.

The previous prime is 16897999. The next prime is 16898023. The reversal of 16898020 is 2089861.

It can be written as a sum of positive squares in 4 ways, for example, as 1327104 + 15570916 = 1152^2 + 3946^2 .

It is not an unprimeable number, because it can be changed into a prime (16898023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1479 + ... + 5998.

It is an arithmetic number, because the mean of its divisors is an integer number (1491861).

Almost surely, 216898020 is an apocalyptic number.

16898020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16898020 is an abundant number, since it is smaller than the sum of its proper divisors (18906644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16898020 is a wasteful number, since it uses less digits than its factorization.

16898020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599 (or 7597 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 16898020 is about 4110.7201315585. The cubic root of 16898020 is about 256.6129720328.

The spelling of 16898020 in words is "sixteen million, eight hundred ninety-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 2260 7477 14954 29908 37385 74770 149540 844901 1689802 3379604 4224505 8449010 16898020